- Season 1 (24 episode) - October 11, 1975
- Season 2 (22 episode) - September 18, 1976
- Season 3 (20 episode) - September 24, 1977
- Season 4 (20 episode) - October 07, 1978
- Season 5 (20 episode) - October 13, 1979
- Season 6 (13 episode) - November 15, 1980
- Season 7 (20 episode) - October 03, 1981
- Season 8 (20 episode) - September 25, 1982
- Season 9 (19 episode) - October 08, 1983
- Season 10 (17 episode) - October 06, 1984
- Season 11 (18 episode) - November 09, 1985
- Season 12 (20 episode) - October 11, 1986
- Season 13 (13 episode) - October 17, 1987
- Season 14 (20 episode) - October 08, 1988
- Season 15 (20 episode) - September 30, 1989
- Season 16 (20 episode) - September 29, 1990
- Season 17 (20 episode) - September 28, 1991
- Season 18 (20 episode) - September 28, 1992
- Season 19 (20 episode) - September 25, 1993
- Season 20 (20 episode) - September 24, 1994
- Season 21 (20 episode) - September 30, 1995
- Season 22 (20 episode) - September 28, 1996
- Season 23 (20 episode) - September 27, 1997
- Season 24 (19 episode) - September 26, 1998
- Season 25 (20 episode) - October 02, 1999
- Season 26 (20 episode) - October 07, 2000
- Season 27 (20 episode) - September 29, 2001
- Season 28 (20 episode) - October 05, 2002
- Season 29 (20 episode) - October 04, 2003
- Season 30 (20 episode) - October 02, 2004
- Season 31 (19 episode) - October 01, 2005
- Season 32 (20 episode) - September 30, 2006
- Season 33 (12 episode) - September 29, 2007
- Season 34 (22 episode) - September 13, 2008
- Season 35 (22 episode) - September 26, 2009
- Season 36 (22 episode) - September 25, 2010
- Season 37 (22 episode) - September 24, 2011
- Season 38 (21 episode) - September 15, 2012
- Season 39 (21 episode) - September 28, 2013
- Season 40 (21 episode) - September 27, 2014
- Season 41 (21 episode) - October 03, 2015
- Season 42 (21 episode) - October 01, 2016
- Season 43 (23 episode) - September 30, 2017
- Season 44 (21 episode) - September 29, 2018
- Season 45 (18 episode) - September 28, 2019
- Season 46 (20 episode) - October 03, 2020
- Season 47 (21 episode) - October 02, 2021
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